Question

Find the acceleration of a body which increases in velocity 0 to 50 km/h in 30 min?

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Answer 1

Explanation:

50 km/h=50×5/18=13.89m/s

t=30×60=1800s

:.a=v-u/t

a=13.89/1800m/s^2

Hope u will get it

Answer 2

Given:-

• Initial velocity ,u = 0m/s

• Final velocity ,v = 50km/h

• Time taken ,t = 30 min

To Find:-

• Acceleration ,a

Solution:-

Firstly we convert the unit here

50 km/h = 50×5/18 = 250/18 = 13.88 m/s

Time = 30×60 = 1800 s

As we know that acceleration is defined as the rate of change of velocity at per unit time

→ a = v-u/t

Substitute the value we get

→ a = 13.88-0/1800

→ a = 13.88/1800

→ a = 0.0077 m/s²

Therefore the acceleration of the body is 0.0077m/s².